E cigarettes Beat Patches in Reducing Low Birthweight Risk Respiratory Therapy Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn Vaping doesn't harm pregnant women or babies: shocking study Light smoking' before pregnancy can cause major health problems Jones co founder Hilary Dubin explains the risks that come with vaping and smoking during pregnancy. Many people think vaping is a safer option during pregnancy. But both smoking and vaping can affect a baby's oxygen, growth, and development. Here are some risks every expecting parent should know..